Car-roof.



W.- P. MURPHY.

CAR ROOF.

APPLICATION FILED SEPT. 28, 1911.

Patented June 25, 1912.

W. P. MURPHY.

GAR ROOF. APPLICATION FILED SEPTv 28, 1911.

1,030,602, Patented June 25, 1912.

4 SHEETS-SHEET 2.

W. P. MURPHY.

CAR ROOF.

APPLICATION TILED SEPT. 28; 1911 Patented June 25, 1912.

4 SHEETS-SHEET 3.

lqz'inaisqa:

W. P. MURPHY.

GAR ROOF.

APPLICATION FILED SEPT. 28, 1911.

Patented June 25, 1912.

4 SHEETS-SHEET 4;

' z lz'zrzesaesv a fa WALTER P. Mom- Y, or CHICAGO, ILLINOIS.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed September 28, 1911. Serial No. 651,717.

To all whom it may concern:

Be it known that I, VALTER P. MUnPHY, a citizen of the United States,and a resident of the city of Chicago, in the county of Cook and Stateof Illinois, have invented a new and useful Improvement in Car-Roofs, ofwhich the following is a specification.

My invention relates to the construction of roofs for freight cars, andits object is to provide a rigid substructure upon which theroofcovering may be secured, the particular objects of the inventionbeing to reduce the vertical thickness of the roof, resulting either inincreased head room Within the car or in a less total height of the topof the car above the rail, to strengthen the roof substructure againstdeformation due to racking and weaving of the car, and to produce acheap construction readilj assembled and easily repaired.

vReferring to the accompanying drawings tormin a part of thisspecification, in which like characters represent like arts throughoutthe several views: Figure is a top plan view of a art of acar roof withthe roof sheets the roof substructure; Fig. 2 is an end elevation of aportion of the upper corner of a car showing my improved roof partly insec tion on the line 22.0f Fig. 1; Fi 3 is a top plan view of one of theforms 0 connection between the carlines and purlins in my improved roofFig. 4 is a sideel'evation of the same showing the carline in section;Fig. 5 isa transverse section through the purlins and filler block ofthe form illus tratedin Figs. 3 and 4; Fig. 6 is a longitudiual sect-ionthrough the end of the purlin; Fig.7 is a top plan view of the jointbetween the carlines and another form of purlin' Fig. 8 is a sideelevation of the same showing the carline in section; Fig. 9 is atransverse section through the purlins shown in Figs. 7 and 8; and Fig.10 is a longitudinal section through the end of the same; 11 is a topplan view of the end portion of a modified form of purlin, showing the(nut between two purlins and a carline; lg. 12 IS a side elevation ofthe joint shown in 11, showing the carline in section; and 1g. 13.11; aside elevation of the joint bet-ween the ends of a modified form ofpurlin and a carline, showing the carline in sechon.

' Referring to Fi 's. 1 and 2 of the-draw lugs, my improve roofcomprises carlines artly broken away to show 1O spaced longitudinallyfrom end to end of the car and spanning the car from caves to caves, the(lids being securely attached to the side plates ll. Purlins .12,parallel with the slide plates, are arranged lengthwise of the carbridging the spaces between the carlincs. to which hey are securelyfastened, and are uniformly spaced across the car from caves to caves.Roof sheets H exteinling from caves to caves of the car are sup portedon Ithe purlins and side plates bc tween the upstanding webs 15 of thecarlines, and are turned down at the ends into grooves 17 in the fascia:18 along the sid s of the car. Seam capslG are arranged over thevertical webs 15 of the carlines to cover the joints betweenadjaceut'roof sheets. These sea-1n caps are secured at the ends by hoodclips 19 fastened to the caves of the car.

In the fonn of my invent-ion illustrated in Figs. 1 to 6, inclusive, thepurlins are channel shaped, and arranged with the open side uppermost,and fillerblocks or strips 13 are placed in the channels to serve asintcrmcdiate supports for the roof sheets. These filler blocks serve asnailing strips in case wooden sheathing is used beneath the roof plates.and where no wood en sheathing is used they serve to space the roofplates above the metal purlins to lessen frict'hm, to allow ventilation, and to decrease the height of the joints. between the roofsheets at the carlines. As shown in Figs. 3 to i the purlins are ofsteel or iron plate pressed up into the form of a channel with marginalflanges to receive the wooden filler blocks 13 for the greater portionof their length, and are flat at the ends. the extremities of the Hatportions being bentup nearly at right angles with the plane of thepurlins to abut against the vertical webs of the carlines. The bent uppor- (ions 22 ()f fltljilttllt p'urlins are arranged to abut in linewith each other at opposite sides of the webs 15 ot' the carlincs, andholes are drilled-or punched through all three mcmbers to receive bolts23 for securing them rigidly together. These bolts 23 are spaced as farapart as is practicable in order to brace the joint as much'a's possibleagainst stresses tending to distort the roof substructure diagonally.The flattening out of the end portions of the purlins produces a or linhaving a considerably wider end t an body portion, and results in a.much stifier joint :1

which he ends are not so widened out.

i of the flanged channel-sectionpurlin 28 is placed underneath and thechannel is merged into the flange 24-at the ends, the extremities 25; ofwhich are bent up to abut against the vertical webs l5 of'the carlines,adjacent purlins being secured together and to the carlines by the bolts26. This arrangement leaves a space between the ends of the struck upportions of the purlins and the vertical flanges of the carlines belowthe top line of the purlins, which space is des'irable with certaintypes of roof sheets in order to accommodate corrugations adjacent theside margins, as shown and described in an application filed by me onJanuary 23,

i I 1911. In Figs. 11 and 12 the extremities 24 of the purlins arestruck up as at 25 and then rebent as at 25 to form supporting flangesfor roof sheets 14, the top faces' of said rebent portions being in thesame plane as the crowns of the channeled body portions of the purlins.The purlin 12,

- shown in Figs. 3 to 6, inclusive, maybe provided with a rebent flange22" at each end in the plane .of the flanges 20, the rebent flanges 22*forming with the flanges 20 supports for the roof sheets 14. My improvedpurlin is also very well adapted to wood or metal lined roofs, in whichwood sheathing or sheet metal plates or pans are arranged below the roofsheets in the spaces between the purlins and carlines, and supported onthe side flanges thereof. The ecuring bolts 23,26, for the purlins donot interfere with the corners of the lining panels, as would be the 0se; were they arrangedin'the horizontal an'ges of the carlines insteadof in the vertical Webs thereof. The purlin 28 has the additionaladvantage of providing side flanges for supporting the lining which aresubstantiallyfieven with the horizontal flanges of the carlines.

While I. have illustrated and described my invention in detail, I do notwishto be understood as restricting myself to the precise'forms andarrangements which I have .65 between said carlines, the channel andflanges being merged into the same plane at the ends of the respectivepurlins and bent 'up against the vertical webs of the carlines, andfastening means passed through said bent up ends of the purlins and websof the carlines to secure them together.

2. In a car roof, the combination with carlines having vertical webs, ofmetal purlins of flanged channel section extending between saidcarlines, the channel and flanges being spread out into a plane sectionat either end of the respective purlins and bent up against the verticalwebs of the carlines, and bolts passed through said laterally spacedbent up ends of the purlins and the-webs of the carlines to secure saidpurlins and carlines together, said bolts being spaced apart, therebysecuring a bracing effect.

3. In acar roof, the combination with lins of flanged channel sectionadapted tov receive a wooden filler extending between said carlines, thechannel and flanges being merged into the same plane at the ends of therespective urlins and bent up against the verticalweibs of the carlines,and fastening means passed through said bent up ends of the purlins andwebs of the carlines to secure them together.

'- 4. In a car roof, the combination with carlines having vertical webs,of metal purlins of flanged channel'section .adapted to receive a woodenfiller extending between said carlines, the channel and flanges beingmerged into the same plane at the ends of the respective purlins andbent up against the vertical webs of the carlines, filler stripspositioned in the channel section of said purlins, the upper surface ofsaid filler strips lying above the flanges of the purlins section of thepurlins merging into wide spreading-plane sections at the ends extendinglaterally beyond the body lines of the purlin and terminating intransverse flanges, and means for securing said transverse flanges tothe vertical webs of the carlines.

6. A car roof comprising spaced carlines provided with vertical webs,metal purlins having roof sheet supporting portions extending. betweenthe carlines, transverse flanges terminating in rebent supportingportions at the ends of said purlins, and means for securing saidtransverse flanges to the vertical webs of the carlines.

metal purliris having lateral flanges extending between the carlines anddividing the spaces between the carlines into panels adapted to receivea lining to be supported by said lateral flanges, transverse flanges:

at the ends of said purlins, and means for securing said transverseflanges to the vertical Webs of the carlines.

8. A sheet metal purlin pressed into a channel section, the end portionsof said purlin being merged into a plane section, said plane sectionbeing struck up and rebent to form terminal flanges in the plane of thetop of the channel-section.

9. A sheet metal. purlin pressed into a channel section and providedwith marginal flanges, said marginal flanges and channel section merginginto a plane section at the end ofthe purlin, and terminating in ;truckup flanges having rebent extremities.

10. A car roof comprising carlines provided with vertical webs andlateral flanges along the bottom edges thereof, metal purlins of flangedchannel section extending between the carlines and resting at the endson said lateral flanges, the flanged channel section of the purlinsmerging into plane sections at the ends and terminating in struck up andrebent flanges, and means for securing said struck up flanges to thevertical webs of the carlines. 11. A car roof comprising carlinesprovided with vertical webs and lateral flanges along-the bottom edgesthereof, metal purlins of flanged channel section extending between thecarlines and resting at the ends on said lateral flanges, the flangedchannel sect-ion of the purhns merging into plane sections at the endsand terminating in struck up and rebent flanges, and means for securingsaid struck up flanges to the vertical webs of the carlines, said rebentend flanges being in the plane of the tops of the urlins.

Signed at St. Louis, Missouri this 23rd day of September, 1911.

WALTER P. MURPHY.

Witnesses:

G. A. PENNINGTON,

PAULINE AMBERG.

Copies of this patent may be obtained for five centseach, by addressingthe "Commissioner of Patents,

- Washington, D. 0.

